1040102442 has 12 divisors (see below), whose sum is σ = 2253555330. Its totient is φ = 346700808.

The previous prime is 1040102407. The next prime is 1040102519. The reversal of 1040102442 is 2442010401.

It can be written as a sum of positive squares in only one way, i.e., 584237241 + 455865201 = 24171^2 + 21351^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 57783469 = 1040102442 / (1 + 0 + 4 + 0 + 1 + 0 + 2 + 4 + 4 + 2).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 28891717 + ... + 28891752.

Almost surely, 2^1040102442 is an apocalyptic number.

1040102442 is an abundant number, since it is smaller than the sum of its proper divisors (1213452888).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1040102442 is a wasteful number, since it uses less digits than its factorization.

1040102442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57783477 (or 57783474 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 1040102442 is about 32250.6192498687. The cubic root of 1040102442 is about 1013.1926687779.

Adding to 1040102442 its reverse (2442010401), we get a palindrome (3482112843).

The spelling of 1040102442 in words is "one billion, forty million, one hundred two thousand, four hundred forty-two".